<template>
  <div class="user-layout-register">
    <a-form ref="formRegister" :form="form" id="formRegister">
      <a-form-item>
        <a-input
          v-decorator="['username',{rules: [{ required: true, message: '请输入注册账号' },  { validator: this.handleUsernameCheck }], validateTrigger: ['change', 'blur']}]"
          size="large"
          type="text"
          placeholder="账号"
        ></a-input>
      </a-form-item>
      <a-popover placement="rightTop" trigger="click" :visible="state.passwordLevelChecked">
        <template slot="content">
          <div :style="{ width: '240px' }">
            <div :class="['user-register', passwordLevelClass]">
              强度：
              <span>{{ passwordLevelName }}</span>
            </div>
            <a-progress
              :percent="state.percent"
              :showInfo="false"
              :strokeColor="passwordLevelColor"
            />
            <div style="margin-top: 10px;">
              <span>请至少输入 6 个字符。请不要使用容易被猜到的密码。</span>
            </div>
          </div>
        </template>
        <a-form-item>
          <a-input
            v-decorator="['password',{rules: [{ required: true, message: '至少6位密码'}, { validator: this.handlePasswordLevel }], validateTrigger: ['change', 'blur']}]"
            size="large"
            type="password"
            @click="handlePasswordInputClick"
            autocomplete="false"
            placeholder="至少6位密码"
          ></a-input>
        </a-form-item>
      </a-popover>

      <a-form-item>
        <a-input
          v-decorator="['password2',{rules: [{ required: true, message: '至少6位密码' }, { validator: this.handlePasswordCheck }], validateTrigger: ['change', 'blur']}]"
          size="large"
          type="password"
          autocomplete="false"
          placeholder="确认密码"
        ></a-input>
      </a-form-item>

      <a-form-item>
        <a-button
          size="large"
          type="primary"
          htmlType="submit"
          class="register-button"
          :loading="registerBtn"
          @click.stop.prevent="handleSubmit"
          :disabled="registerBtn"
        >立即注册</a-button>
        <a class="login" @click="returnLogin">使用已有账户登录</a>
      </a-form-item>
    </a-form>
  </div>
</template>

<script>
const levelNames = {
  0: "低",
  1: "低",
  2: "中",
  3: "强"
};
const levelClass = {
  0: "error",
  1: "error",
  2: "warning",
  3: "success"
};
const levelColor = {
  0: "#ff0000",
  1: "#ff0000",
  2: "#ff7e05",
  3: "#52c41a"
};
export default {
  name: "Regist",
  data() {
    return {
      username: "",
      password: "",
      state: {
        time: 60,
        smsSendBtn: false,
        passwordLevel: 0,
        passwordLevelChecked: false,
        percent: 10,
        progressColor: "#FF0000"
      },
      registerBtn: false
    };
  },
  beforeCreate() {
    this.form = this.$form.createForm(this);
  },
  computed: {
    passwordLevelClass() {
      return levelClass[this.state.passwordLevel];
    },
    passwordLevelName() {
      return levelNames[this.state.passwordLevel];
    },
    passwordLevelColor() {
      return levelColor[this.state.passwordLevel];
    }
  },
  methods: {
    isMobile() {
      return true; //this.$store.state.setting.isMobile
    },
    handlePasswordLevel(rule, value, callback) {
      let level = 0;

      // 判断这个字符串中有没有数字
      if (/[0-9]/.test(value)) {
        level++;
      }
      // 判断字符串中有没有字母
      if (/[a-zA-Z]/.test(value)) {
        level++;
      }
      // 判断字符串中有没有特殊符号
      if (/[^0-9a-zA-Z_]/.test(value)) {
        level++;
      }
      this.state.passwordLevel = level;
      this.state.percent = level * 30;
      if (level >= 2) {
        if (level >= 3) {
          this.state.percent = 100;
        }
        callback();
      } else {
        if (level === 0) {
          this.state.percent = 10;
        }
        callback(new Error("密码强度不够"));
      }
    },

    handlePasswordCheck(rule, value, callback) {
      let password = this.form.getFieldValue("password");
      if (value === undefined) {
        callback(new Error("请输入密码"));
      }
      if (value && password && value.trim() !== password.trim()) {
        callback(new Error("两次密码不一致"));
      }
      callback();
    },

    handleUsernameCheck(rule, value, callback) {
      let username = this.username.trim();
      if (username.length) {
        if (username.length > 10) {
          callback(new Error("用户名不能超过10个字符"));
        } else if (username.length < 4) {
          callback(new Error("用户名不能少于4个字符"));
        } else {
          this.$get(`user/check/${username}`).then(r => {
            if (r.data) {
              callback();
            } else {
              this.validateStatus = "error";
              callback(new Error("抱歉，该用户名已存在"));
            }
          });
        }
      } else {
        callback();
      }
    },

    handlePasswordInputClick() {
      if (!this.isMobile()) {
        this.state.passwordLevelChecked = true;
        return;
      }
      this.state.passwordLevelChecked = false;
    },

    handleSubmit() {
      this.form.validateFields(["username", "password"], (err, values) => {
        if (!err) {
          console.log(this.username, this.password);
          this.$post("/regist", {
            username: this.form.getFieldValue("username"),
            password: this.form.getFieldValue("password")
          })
            .then(res => {
              if (res.data[1]) {
                this.$message.success("注册成功");
                this.returnLogin();
              } else {
                this.$message.error("抱歉，注册账号已存在");
              }
            })
            .catch(() => {
              this.$message.error("抱歉，注册账号失败");
            });
        }
      });
    },

    returnLogin() {
      this.$emit("regist", "Login");
    }
  }
};
</script>
<style lang="less">
.user-register {
  &.error {
    color: #ff0000;
  }
  &.warning {
    color: #ff7e05;
  }
  &.success {
    color: #52c41a;
  }
}
.user-layout-register {
  .ant-input-group-addon {
    &:first-child {
      background-color: #fff;
    }
  }
  & > h3 {
    font-size: 16px;
    margin-bottom: 20px;
  }
  .getCaptcha {
    display: block;
    width: 100%;
    height: 40px;
  }
  .register-button {
    width: 50%;
  }
  .login {
    float: right;
    line-height: 40px;
  }
}
</style>
